So far in the Marvel Cinematic Universe we’ve seen a number of references to Inhumans. We’re going film-by-film (or show) and breaking down each time the Inhumans are mentioned, alluded or anytime theres a possible connection between the current MCU and the upcoming Inhumans movie.

We found links in The Avengers, Agents of S.H.I.E.L.D (Season 1 and 2), Agent Carter, Guardians of the Galaxy and Avengers: Age of Ultron. Watch out for spoilers if you’re not already caught up. See where the Inhumans fit into the MCU, after the jump.

The Avengers

It’s very likely that Marvel didn’t have the Inhumans movie planned when the first Avengers film was in production. However the presence of the Chitauri army is very telling.

Bottom line, given how interconnected the Skrulls (Chitauri) and Kree are, you cant have one without the other, and you can’t have Inhumans, without either alien race.

Agents of S.H.I.E.L.D.

The bulk of all Inhuman activity in the MCU today happens in Agents of S.H.I.E.L.D. It all starts with Skye in Season 1. Skye’s mysterious backstory starts to clear up when we learn that, as an infant, she was identified as in 0-8-4 “an unknown object” by S.H.I.E.L.D. Skye was taken away from her parents who, in the show, were referred to as “monsters”. This lends some credibility to Skye being an Inhuman as we know she’s not human and we’d later confirm that her parent’s aren’t human either.

Over the course of the show we start to learn about the T.A.H.I.T.I. project. This was an effort that Agent Coulson was in charge of, which had the purpose devise a way to revive a mortally wounded Avenger. The project produced a serum called GH-325 that could successfully bring back the dead. Unfortunately, this came with some severe side effects. It turns out that GH-325 was derived from alien DNA, specifically the alien that S.H.I.E.L.D. experimented on was a Kree.

Coulson decides to end the project but not before GH-325 was used on himself and Skye. Nick Fury first uses the serum tor revive Agent Coulson after the events of the first Avengers film. Over time, this causes Coulson to behave erratically and obsessively sketch alien markings into walls. The serum is also used on Skye to save her from what would have been a lethal gunshot wound. Only this time, Skye exhibits none of the after effects. Given the Kree’s connection to the Inhumans, we find that Skye’s immunity to the serum is a result of her Inhuman genes.

So what about Coulson’s alien markings? Skye was quick to point out that the markings appeared to be a map of some kind. We learn that the map, is actually a blue print to a city.

At first we speculated that this could be the Inhuman city of Attilan (More on Attilan in Part 1). What’s more likely however is that the blueprint was to an ancient Kree city. We know that the Kree conducted experiments on early humans, its possible that they did so on a colony somewhere in the mountains. In the show this is simply referred to as the “lost city” which doesn’t really give us any indication either way.

At this point in the show, things started to move from speculation, to confirmation. Marvel is done alluding to Inhumans in Agents of S.H.I.E.L.D., they’re now fully a part of the cinematic lore. First we see Skye’s father, describe her mother and Terrigenesis.

“Your mother was special because she had a gift. She comes from a line of people who have gifts. You have a gift. It’s why I brought you here, so you can receive it. It’s your birthright. There’s a transformation… a change that has to happen.”

Later, we actually see Skye and Raina go through the Terrigenesis process. The ordeal is depicted in the show exactly as it is in the Inhumans comics (Described in Part 1). With Skye and Raina, Marvel is showing us two sides to the Inhuman world. Skye, who emerged from the Terrigenesis in her same form, but with new powers and abilities, and Raina, who emerged with powers but also the handicap of monstrous deformities.

As Skye learns more about her powers, she’s introduced to more Inhumans. We learn that the Inhumans have their own city where they train and nurture those going through Terrigenesis. Things start to shake up when S.H.I.E.L.D. discover the location. The Inhumans feel thretend… all signs point to war.

The implications are huge, leaving no doubt that Marvel will continue to explore the possibility of Inhumans on Earth. There could be thousands of unwitting Inhumans that could at some point be exposed to Terrigen mist. We expect that future seasons of Agents of S.H.I.E.L.D. or the new Agents of S.H.I.E.L.D. spinoff series will start to reveal more Inhumans living secretly on earth.